ipsec with certificate authentication issue



I have ipsec setup for telnet (transport). I'll leave out all the filter
details as I don't think they are pertinent to the problem. It works fine
with preshared key but I cannot get it to work with certificate
authentication. Client machine is connected to the lan via pptp vpn and
telnet server resides on the remote lan. This works fine with preshared key.
Both machines have my own MS cert server's certificate installed in their
local machine store's trusted root certification authorities folder and both
machines have their own certificate issued from this CA installed in their
own local machine store. The cert was obtained via ms cert services web
interface using the 'administrator' template. But if I understand correctly
the type of cert on each machine does not really matter as long as they are
both from the same trused root CA, which they are.

I'm really not sure where to go from here. I know the issue must be
certificate auth related since it works just fine with preshared key.

any help would be greatly appreciated.


.



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